Honeywell MY2N-J 24VDC PYF08A-E Replacement for MY Series

Product Overview

Honeywell MY2N-J 24VDC PYF08A-E Replacement for MY Series: Smooth Transition & Legacy System Compatibility

When aging relay control panels, legacy DIN rail assemblies, or discontinued MY-series relay modules begin to compromise system reliability, the Honeywell MY2N-J 24VDC 2-M4X10 with PYF08A-E 8-pin DPDT socket delivers a proven, drop-in upgrade path. This combination is engineered for industrial control cabinets where space is constrained, wiring must remain unchanged, and downtime is not an option. Whether you are replacing a worn-out MY2N-J coil assembly, upgrading a legacy relay panel in a PLC-controlled machine, or standardizing your DIN rail relay inventory across multiple control cabinets, this unit provides the electrical and mechanical compatibility your retrofit demands.

The MY2N-J operates on a 24VDC coil voltage — the most common control voltage in modern PLC output circuits — making it directly interchangeable with relay slots driven by Siemens S7-1200 digital output modules, Mitsubishi FX5U transistor output cards, or Omron CP1H relay output units without any rewiring of the control circuit. The DPDT (Double Pole Double Throw) contact configuration supports both normally open and normally closed switching paths, preserving existing ladder logic and wiring schematics without modification.

The PYF08A-E DIN rail socket provides the 8-pin footprint that mates directly with the MY2N-J body. Its screw-terminal design (M4×10 specification) ensures secure conductor retention under vibration — a critical requirement in compressor rooms, conveyor drive panels, and motor control centers. The socket’s DIN rail clip mechanism is compatible with standard 35mm TS35 rails found in virtually all modern and legacy control cabinets, eliminating the need for panel modifications during replacement.

For facilities migrating from older relay logic panels to hybrid PLC-relay architectures, this MY2N-J / PYF08A-E assembly integrates cleanly alongside components such as the Omron G2R-2 relay and PTF08A-E socket in mixed-brand DIN rail rows, or alongside Phoenix Contact RIFLINE relay modules in modular terminal relay assemblies. When the control cabinet also houses a Siemens ET 200SP distributed I/O station or a Mitsubishi AJ65SBTB1-16D CC-Link remote I/O module, the MY2N-J serves as the interface relay between low-current PLC outputs and higher-current field loads such as solenoid valves, motor starters, and indicator lamps.

In retrofit projects where the original relay panel used Finder 55.32 series DPDT relays or TE Connectivity RT424F24 relays on compatible 8-pin sockets, the MY2N-J offers a functionally equivalent replacement with identical pin assignments (A1/A2 coil, 11/12/14 and 21/22/24 contact pairs), allowing technicians to swap units without consulting updated wiring diagrams. The 2-M4X10 terminal specification confirms M4 screw size with 10mm thread engagement — matching the torque and conductor cross-section requirements of most existing panel wiring (typically 0.5–2.5mm² control cable).

For applications requiring signal isolation between the PLC output card and field devices — particularly in environments with high electromagnetic interference from ABB ACS880 variable frequency drives or Yaskawa GA700 inverters — the MY2N-J relay provides galvanic isolation between the control circuit and the load circuit, protecting sensitive PLC I/O cards from voltage spikes and inductive kickback. This makes it an essential component in drive panel retrofits where the original isolation relay has degraded or failed.

Stock is maintained in Xiamen and available for same-day dispatch. Each unit undergoes coil resistance verification, contact continuity testing, and insulation resistance checks prior to shipment. Units are individually packaged with anti-static protection and shipped via DHL Express or SF International for reliable international delivery.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful relay panel retrofit rarely involves a single component. When replacing MY2N-J units across a control cabinet, engineers typically also address adjacent components to ensure long-term reliability. The PYF08A-E socket is the matched DIN rail base for this relay and should be replaced simultaneously with the relay body to eliminate contact resistance from worn socket springs. In cabinets where multiple relay rows are mounted, Omron PYC-A1 hold-down clips prevent relay ejection under vibration and are recommended for any high-vibration installation.

For control panels that also house Siemens LOGO! 24RCE logic modules or Mitsubishi FX3G-14MR/ES PLC units driving relay outputs, the MY2N-J serves as the standard interface relay between the controller’s 24VDC output and 230VAC field loads. In these architectures, a Phoenix Contact QUINT-PS/1AC/24DC/10 power supply typically provides the 24VDC rail voltage for both the PLC and the relay coils — ensuring coil voltage stability is essential for reliable relay operation.

Where the retrofit involves replacing an entire relay panel section, Weidmüller WDU 2.5 terminal blocks and end brackets are commonly used alongside DIN rail relay sockets to organize field wiring. In applications requiring relay status indication, the Omron P2RF-08-E socket with LED indicator is an alternative socket option that provides visual coil energization feedback without additional wiring.

For facilities standardizing on a single relay platform across multiple machines, maintaining a buffer stock of MY2N-J relays and PYF08A-E sockets reduces emergency procurement lead times and supports planned preventive maintenance schedules.

Retrofit Guidance FAQ

Q: Can I replace only the relay body without changing the PYF08A-E socket?
A: Yes, if the socket contacts show no signs of arcing damage, pitting, or spring fatigue. However, for critical applications or relays that have been in service for more than 3 years, replacing both the relay and socket simultaneously is recommended to ensure full contact integrity.

Q: Is the MY2N-J pin-compatible with other 8-pin DPDT relays from other brands?
A: The MY2N-J follows the standard IEC 8-pin DPDT relay footprint (A1/A2 coil, 11/12/14 and 21/22/24 contacts). This is compatible with most 8-pin DIN rail relay sockets from Finder, TE Connectivity, and similar manufacturers using the same pin standard.

Q: What conductor cross-section is supported by the M4×10 terminals on the PYF08A-E?
A: The M4 screw terminals support conductors from 0.5mm² to 2.5mm² (AWG 20–14), covering the full range of standard control wiring used in PLC output circuits and field device connections.

Q: Does the 24VDC coil version work with both NPN and PNP PLC output types?
A: Yes. The MY2N-J 24VDC coil can be driven by either NPN (sinking) or PNP (sourcing) transistor outputs, provided the wiring polarity is configured correctly for the output type. No additional components are required.

Q: What is the physical footprint, and will it fit in an existing DIN rail slot?
A: The MY2N-J with PYF08A-E socket occupies a standard MY-series footprint on 35mm DIN rail. No panel drilling or rail modification is required for a direct replacement of an existing MY-series relay installation.

Q: Can this relay be used in high-vibration environments such as compressor or pump control panels?
A: Yes. The PYF08A-E socket includes a relay hold-down latch. For extreme vibration environments, additional hold-down clips (such as Omron PYC-A1) are recommended.

Warranty Assurance

Every Honeywell MY2N-J 24VDC 2-M4X10 / PYF08A-E unit shipped from TOPNLMS is covered by a 12-month warranty from the date of delivery. Our pre-shipment inspection protocol includes coil resistance measurement, contact continuity verification across all NO and NC paths, insulation resistance testing between coil and contacts, and mechanical operation cycling. Units that do not meet specification are quarantined and not shipped.

In the event of a warranty claim, TOPNLMS provides replacement unit dispatch within 3 business days of claim confirmation, with no requirement to return the defective unit for low-value claims. For high-volume orders, batch test reports are available upon request. Our procurement support team is available to assist with urgent replacement sourcing, cross-reference verification, and compatibility confirmation for your specific control system application.

We maintain bonded stock of MY2N-J and PYF08A-E units to support emergency procurement requirements with same-day dispatch capability from our Xiamen warehouse.